First, what options do you have?
The tech package has nothing to do with audio:
* Intelligent Cruise Control[*] with Preview Braking[*]
* Advanced Climate Control System with Plasmacluster™ air purifier
* Rain-sensing, flat-blade variable intermittent front windshield wipers
* Pre-Crash Seat Belts
If you have the premium package it has the music box.
* Power sliding tinted glass moonroof with one-touch open/close, tilt feature and sliding sunshade
* Infiniti Studio on Wheels® by Bose® Premium Audio System with 11 speakers, including 3-way component front door speakers with 10-inch subwoofers and a parcel shelf-mounted subwoofers
* Driver's Audio Stage
* 2.0GB Music Box® (800MB for music storage)
* 2-way power lumbar support for driver’s seat
* Memory system for driver’s seat, steering wheel and outside mirrors
* Dual occupant memory system for driver's seat, steering wheel and mirrors settings, linked to individual Intelligent Keys
* Power tilt and telescopic steering wheel
* Rear Sonar System[*]
Finally, the NAV increases the HD space to 9.3GB:
* Infiniti Hard Drive Navigation System with 7-inch color touch-screen, Lane Guidance and 3-D building graphics[*]
* XM NavTraffic®[*] with Real-Time Traffic information
* XM NavWeather™ with Real-Time Weather and 3-day forecast [*]
* Zagat® Restaurant Guide
* Streaming audio via Bluetooth® wireless technology[*]
* 9.3GB Music Box® hard drive (replaces 2.0GB Music Box® - 800MB for music storage)
* DVD video playback on 7-inch display
* Infiniti Voice Recognition for audio, information and navigation systems
Requires Premium Package. Replaces compass in rearview mirror.
You may have to be standing still (if you don't have the NAV bypass mod) to get into that menu. Check your manual or log into Infiniti for a digital copy:
http://www.infinitiusa.com/ownership/experience.html